Installation Guidelines - If hard wired into mains; unit must be installed by a qualifi ed electrician and in accordance with local wiring rules. - If unit is installed in an equipment cavity; adequate air flow must be provided. - For mounting; use 4.8mm x 50mm self-tapping screws (or equivalent) and ensure that mounting surface can support unit weight. - For best performance and longest lamp life; load the power supply at approximately 80% of it's stated rating. - The input cable on the unit cannot be replaced; If it is damaged; the unit must be scrapped.